NEWS
Standards and specifications for IT service operation
Time:
2021-11-12
1G has enabled mobile calls, 2G has enabled text messaging, digital voice, and mobile internet access, 3G has brought about image based mobile internet, and 4G has driven the development of mobile video. 5G network is regarded as the foundation of the future Internet of Things, Vehicle-to-everything and other Internet of Things. Meanwhile, the popularization of 5G will make technologies including virtual reality and augmented reality mainstream. 4G networks are specifically designed for mobile phones and have not been optimized for the Internet of Things. 5G technology provides a huge bandwidth for the Internet of Things. Compared to 4G, 5G networks can support more than 10 times the number of devices. Intelligent sensors that can be applied to autonomous driving, ultra high definition video, virtual reality, and the Internet of Things. 5G networks have three main characteristics: extremely high speed, extremely large capacity, and extremely low latency. Compared with the 4G network, the transmission rate has increased by 10~100 times, the peak transmission rate has reached 10Gbit/s, the end-to-end delay has reached ms level, the density of connected equipment has increased by 10~100 times, the traffic density has increased by 1000 times, and the Spectral efficiency has increased by 5~10 times, which can ensure the user experience at a speed of 500km/h. Unlike 2G, 3G and 4G, which are only for people to people communication, 5G has considered the interconnection between people and things, things and things when designing. Among the 5G indicators accepted by the Global Telecommunication Union, in addition to the requirements for the peak speed of the original base station, it has proposed eight indicators for 5G: base station peak speed, user experience speed, Spectral efficiency, traffic space capacity, mobile performance, network energy efficiency, connection density and delay.
Keywords: Electronics
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